单项选择题

It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.

A.for my vessel crossing safely
B.my vessel is to cross safely
C.for my vessel to cross safely
D.for my vessel's crossing safely

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单项选择题

Intact buoyancy is a term used to describe（）.

A.the volume of all intact spaces above the waterline
B.an intact space below the surface of a flooded area
C.an intact space which can be flooded without causing a ship to sink
D.the space at which all the vertical upward forces of buoyancy are considered to be concentrated

单项选择题

In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.

A.center of gravity
B.amidships station
C.center of flotation
D.geometric center of the waterplane area

单项选择题

In practice，it is usual for the ship to be loaded（）to improve the vessel’s movement through the water.

A.a little deeper aft
B.a little deeper forward
C.at the same draught between fore and aft
D.a balance between two sides